framework. The list of changes include:
* Modify compiler.mk so that "c" is always prepended to USE_LANGUAGES,
so we no longer need to say it in package Makefiles. Packages
should now append to USE_LANGUAGES instead of setting it.
* Create mk/compiler/f2c.mk which implements another pseudo-compiler
"f2c" that may be used with any C compiler backend, e.g.
PKGSRC_COMPILER= f2c ccache gcc
* Teach the various "real" compiler files, e.g., sunpro.mk, mipspro.mk,
etc., to use f2c if the native Fortran compiler isn't present.
Packages that use Fortran should now simply include the line:
USE_LANGUAGES+= fortran
in the package Makefile.
are handled. The idea now is to simply remove the paths in the values
of these variables, leaving behind only the basename plus any arguments,
e.g.:
CC= /usr/local/bin/gcc becomes CC= gcc
CPP= /usr/local/bin/gcc -E becomes CPP= gcc -E
The wrapper scripts are generated for every unique executable mentioned
by the toolchain variables, so for the example above, only a "gcc"
wrapper script is generated for ${CC} and ${CPP}. PKG_{CC,CPP,CXX,etc.}
are the paths to the executables wrapped by the wrapper scripts.
Note that it's now possible to set "CC" to something more than just the
path to the compiler, e.g.
CC= cc -ffast-math -funroll-loops -fomit-frame-pointer
and the full value of ${CC} will be passed through via CONFIGURE_ENV
and MAKE_ENV.
